2006 International Conference on Microwaves, Radar &Amp; Wireless Communications 2006
DOI: 10.1109/mikon.2006.4345292
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Double-ridged Horn Antenna with Sinusoidal Ridge Profile

Abstract: FDTD numerical study compared to the results of measurement is reported for doubleridged horn antenna with sinusoidal profile of the ridge. Different transitions from coaxial to double-ridged waveguide were considered on the preliminary step of the study. Next, a suitable configuration for feeding the ridges of antenna was chosen. The sinusoidal ridge taper is described in the next part of the paper. Finally, the simulations results of complete antenna are presented. Theoretical characteristics of reflection a… Show more

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Cited by 11 publications
(2 citation statements)
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“…4 with FDTD simulations). This is in contrast to [16] and [17] which report that the matching improves with decreasing the gap between the ridges. Exact physical explanation remains unclear to us, but we hypothesize that the size of the feed may be the cause, since the diameter of the inner conductor of the coaxial probe is 1 mm, comparable to the gap itself.…”
Section: A the Antennacontrasting
confidence: 82%
“…4 with FDTD simulations). This is in contrast to [16] and [17] which report that the matching improves with decreasing the gap between the ridges. Exact physical explanation remains unclear to us, but we hypothesize that the size of the feed may be the cause, since the diameter of the inner conductor of the coaxial probe is 1 mm, comparable to the gap itself.…”
Section: A the Antennacontrasting
confidence: 82%
“…Una consideración importante en el funcionamiento de este tipo de antenas es el perfil de las jorobas, ya que este influye directamente en el acople de impedancias que va aproximadamente de 50 Ω en la sección de alimentación hasta 377 Ω en el espacio libre [62]. Varios estudios han sido realizados con el fin de establecer un perfil adecuado para esta sección, entre las principales propuestas están el perfil exponencial [70], el sinusoidal [71] y el binomial [7]. Aunque el común en la literatura científica es aceptar que un perfil exponencial como el presentado en la figura 2.11 proporciona un mejor acople, el uso de estos propicia una impedancia en la apertura de la antena superior a los 377 Ω requeridos, principalmente debido a la rápida apertura de las jorobas en dicha sección, por esta razón se han planteado diversas modificaciones a este modelo [10].…”
Section: 13 Perfil De Las Jorobasunclassified